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Rifles, Reloading, Optics, Equipment
Reloading
Reloader 26 in 6.5 creedmoor
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<blockquote data-quote="codyadams" data-source="post: 2047707" data-attributes="member: 87243"><p>Even these though, from my understanding, have limited accuracy. From what I understand, you use factory ammunition to get a "base line" for the pressure, then shoot other loads and compare....this is similar to looking at the velocity on the box of ammo and using that for your drop charts. So many things come in to play, that there is no way it can be reliable. There are other things the pressure trace does as well, such as pressure curves and stuff, but I mean in terms of simply reading max pressure. If your simply using factory ammo to get a base line, that is just comparing your other loads to factory ammo, it isn't giving you the exact pressure of your load. Some factory loads I have shot have nearly blown primers, factory Berger 6.5 cm ammo out of a ruger I was working on for instance, and I recall one 30-06 that, with 165 factory federal ammo out of a howa, was essentially duplicating 30-30 performance. If you don't know the numbers of what your comparing against, you essentially don't have solid values. </p><p></p><p>Again, there are other very valuable data points you get from the pressure trace system, however, unless something has changed or I misunderstood, I don't think you can just install it on your gun, fire a round and have it read "58,887 psi" for instance....please correct me if I am misunderstanding</p></blockquote><p></p>
[QUOTE="codyadams, post: 2047707, member: 87243"] Even these though, from my understanding, have limited accuracy. From what I understand, you use factory ammunition to get a "base line" for the pressure, then shoot other loads and compare....this is similar to looking at the velocity on the box of ammo and using that for your drop charts. So many things come in to play, that there is no way it can be reliable. There are other things the pressure trace does as well, such as pressure curves and stuff, but I mean in terms of simply reading max pressure. If your simply using factory ammo to get a base line, that is just comparing your other loads to factory ammo, it isn't giving you the exact pressure of your load. Some factory loads I have shot have nearly blown primers, factory Berger 6.5 cm ammo out of a ruger I was working on for instance, and I recall one 30-06 that, with 165 factory federal ammo out of a howa, was essentially duplicating 30-30 performance. If you don't know the numbers of what your comparing against, you essentially don't have solid values. Again, there are other very valuable data points you get from the pressure trace system, however, unless something has changed or I misunderstood, I don't think you can just install it on your gun, fire a round and have it read "58,887 psi" for instance....please correct me if I am misunderstanding [/QUOTE]
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Reloading
Reloader 26 in 6.5 creedmoor
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